Observation information
- date-obs: 2023-05-28
- time-obs: 23:40:10.506100000
- date-end: 2023-05-29
- time-end: 02:08:08.499100000
- obs_id: T05_100T01_9000005668
- exposure: 4574.01297754
- sourceid: NGC 4395
- observer: hengxiao
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_100T01_9000005668_41447cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41447cztM0_level2_quad_clean.evt
|
Size (bytes) | 310,423,680 | 82,134,720 |
Size | 296.0 MB
| 78.3 MB
|
Events in quadrant A | 2,700,311 | 559,168 |
Events in quadrant B | 2,584,313 | 560,893 |
Events in quadrant C | 3,039,474 | 520,212 |
Events in quadrant D | 2,782,099 | 501,208 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 39 | 0 |
B | 0 | 39 | 0 |
C | 0 | 39 | 0 |
D | 0 | 40 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10920 | 3 |
B | 0 | 11047 | 2 |
C | 0 | 12051 | 2 |
D | 0 | 11690 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4930 | 18 | 0.365112% |
B | 4930 | 156 | 3.164300% |
C | 4930 | 282 | 5.720081% |
D | 4930 | 66 | 1.338742% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7052 | 4931 | 7 | 7 | 0.10% | 0.14% |  |
B | 7052 | 4931 | 127 | 127 | 1.80% | 2.58% |  |
C | 7052 | 4931 | 283 | 283 | 4.01% | 5.74% |  |
D | 7052 | 4931 | 59 | 59 | 0.84% | 1.20% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 490570 | 4298.73 | 552 | 541 | 114.0 |
A | 13 | 248 | 59529 | 517.47 | 552 | 541 | 114.0 |
A | 2 | 79 | 14694 | 124.16 | 552 | 541 | 114.0 |
B | 0 | 186 | 370327 | 3537.28 | 538 | 524 | 104.5 |
B | 0 | 190 | 71755 | 681.35 | 538 | 524 | 104.5 |
B | 12 | 111 | 13323 | 122.43 | 538 | 524 | 104.5 |
C | 0 | 10 | 797034 | 6618.71 | 516 | 520 | 120.3 |
C | 15 | 214 | 200001 | 1657.61 | 516 | 520 | 120.3 |
C | 3 | 233 | 25815 | 210.19 | 516 | 520 | 120.3 |
D | 13 | 249 | 267669 | 2059.13 | 530 | 513 | 129.7 |
D | 5 | 222 | 232915 | 1791.26 | 530 | 513 | 129.7 |
D | 1 | 47 | 128978 | 990.16 | 530 | 513 | 129.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |